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Fire in the French SSN Perle during maintenance

 

Fire started in the morning and was only contained late this evening, no injuries and apparently no risk of contamination of any kind (weapons, battery and nuclear fuel were removed from the boat for the duration of the maintenance).

Intervention of the firemen was difficult given the high temperature and the cramped environment, even more so than normal in a sub (Rubis class are the smallest SSN in the world at only 2670 t submerged for 74 m of length)

 

Though given how long the fire went on damage are likely to be extensive and possibly structural.

The ship may not be salvageable which would severely impact the navy and more importantly our nuclear dissuasion (SSN are used to escort SSBN out of their base before they go off the grid), 6 attack subs being the bare minimum to maintain all missions at all time:

  • One in major maintenance
  • One in normal maintenance
  • One in training and qualification cycle
  • One to escort the SSBN on duty to it's patrol site
  • One to escort the carrier group (or another strike force when the carrier is in maintenance)
  • One gathering intel somewhere

The Perle was the most recent ship of the Rubis class and this was supposed to be it's last major maintenance and upgrade before being replaced by the Casabianca (last of the Suffren class) in 2030.

 

Spoiler

 

 

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45 minutes ago, Gauntlet said:

 

Is there any more detailed technical description of the ships and their armament available anywhere? 

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2 minutes ago, Beer said:

 

Is there any more detailed technical description of the ships and their armament available anywhere? 

 

I got a reliable source in Dutch: https://marineschepen.nl/schepen/mks-180.html#specs

Another source: https://www.navalnews.com/naval-news/2019/04/german-navy-outlines-mks-180-multi-purpose-combat-ship-future-capabilities/

 

The specifications that we know are:

Length: 155

Maximum displacement: 9000 ton

Crew: 110 + 70 boarders

Weapon systems: 

127/64 LW Leonardo cannon. Vulcano might also be a possibility.

16 cell VLS for 64 ESM block 2

Naval Strike Missile

Rolling Airframe Missile

 

Sensors:

Thales AWWS most likely

Towed sonar

 

Helicopters:

2 NH90 

or

1 NH90 and Skeldar V-200 drones

 

I wonder what type of design they will go for. If we look at F125. The amount of sensors is stunning. And the redundancy design is also interesting. Maybe some aspects of the F125 might flow over to MKS180.

 

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The weight is mostly there for crew comfort, upgrade potential, staying time in the AOO, Multi Crew Concept and Automation.
And i like the thinking of "Air is free and steel is cheap" so why not just make it big.
But it triggers people stuck in the 1930s in terms of ship classification.
"The rules are made up and tonnage doesnt matter."

 

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On 6/20/2020 at 3:01 PM, Gauntlet said:

The specifications that we know are:

Length: 155

Maximum displacement: 9000 ton

Crew: 110 + 70 boarders

Weapon systems: 

127/64 LW Leonardo cannon. Vulcano might also be a possibility.

16 cell VLS for 64 ESM block 2

Naval Strike Missile

Rolling Airframe Missile

 

These specifications are preliminary and to some extend speculations. The official explanation article to the MKS 180 program from the Bundeswehr originally included these figures for length, displacement and crew complement, but it was updated after the contract was approved by the Bundestag.

 

The length is now 160 meters, displacement "up to 10,000 tons" and the crew consists of 114 sailors but additional bunks for 80 further men are provided.

 

On 6/20/2020 at 3:01 PM, Gauntlet said:

I wonder what type of design they will go for. If we look at F125. The amount of sensors is stunning. And the redundancy design is also interesting. Maybe some aspects of the F125 might flow over to MKS180.

 

The key difference between MKS 180 and F125 is the modularity. The MKS 180 is designed to be fitted with different mission modules to conduct various different types of operations. The MKS 180 will also feature a TRS-4D radar just like the F125, but given that this is a X-band radar, a futher radar must be included for the guidance of the ESSM block 2 anti-air missiles.

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UK navy plans to create carrier strike groups with her two aircraft carrier's.

 

 https://www.forces.net/news/what-makes-carrier-strike-group

 

But the problems with the plan are already coming. Not enough funding it seems.

 

https://www.bbc.com/news/uk-53186611?intlink_from_url=https://www.bbc.com/news/topics/c40rjmqdq1lt/royal-navy&link_location=live-reporting-story

 

The layout of the group might look like:

 

- Queen Elizabeth-class aircraft carrier;

- Type 45 guided missile destroyers for anti-aircraft and anti-missile warfare;

- Type 23 frigate anti-submarine warfare. Might be replaced by type 26;

- Astute-class submarines. Probably for detecting ships and submarines;

- Tanker

 

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1 hour ago, Jeeps_Guns_Tanks said:

Yikes! Is that the mast all fallen over?

Yes. I think the forward mast came down somewhat early on.  For reference and for anyone that can't tell, those burn holes are in the roof of the ship's island superstructure, not the flight deck

 

200712-n-mj716-0498.jpeg

 

News and updates from the Navy



I want to provide you with some updates on the progress we have made: First, we have investigated the four main engineering spaces and found no major damage. There is no threat to the fuel tanks, which is well-below any active fires or heat sources. The ship is stable and the structure is safe. We still have an active fire, which we are combating from both within and outside the ship from multiple access points. HSC 3 helicopters have conducted more than 1,000 helicopter water bucket drops, which is cooling the super structure and flight deck enabling fire crews to get onboard internally to fight the fire. Tugs are also provide firefighting support from the waterline. I’m proud of the toughness of the Sailors and federal firefighters for making this significant progress possible.  - Rear Adm. Philip Sobeck

 

So it seems maybe it's not near a total loss, but that sure isn't going to be a quick or cheap fix.

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24 minutes ago, Scolopax said:

Something related to welding or maintenance seems most likely as the cause to me, but who knows with the social/political climate we have now. Time will tell.

 

Pretty much. 

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